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Four green DDR4 RDIMM sticks with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 3200 PC4-25600 ECC RDIMM THINKMATE memory upgrade

SKU CH-9PBC-9189T

128 GB DDR4 3200 ECC registered server memory kit, four 32 GB modules at CL22 1.2 V for ThinkMate GPU-optimised systems

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 128GB total capacity with four 32GB modules
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • ECC registered RDIMM ensures data integrity
  • 2V operation at CL22 CAS latency
  • Validated for ThinkMate GPX-QN6-42E2-8NVLINK servers

128GB ECC RDIMM kit for Thinkmate servers

This 128GB kit contains four 32GB DDR4 3200 registered DIMMs built for Thinkmate GPX-QN6-42E2-8NVLINK GPU-optimised servers. Each module runs at 1.2V with CL22 latency and 2Rx8 organisation. The ECC registered design targets administrators who need error correction and signal integrity in multi-socket workloads.

Sustained-load behaviour with registered ECC

Registered buffering reduces electrical load on the memory controller, helping stability when all twelve slots are populated across both CPUs. ECC corrects single-bit errors and detects multi-bit errors during long compute runs, preventing silent data corruption in GPU-accelerated tasks. The 1.2V operation keeps thermal output predictable inside dense 4U chassis under continuous utilisation.

Verify slot count and population rules before

Confirm the server has at least four free DDR4 RDIMM slots and check the Thinkmate population guide for optimal channel distribution across both processors. Mixing ranks or speeds can disable ECC or downclock the kit, so remove unmatched modules. The 288-pin form factor fits only DDR4 RDIMM sockets — not UDIMM, LRDIMM or DDR5 slots.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $1,096.99
Pricier than about 61% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $8.57 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineTHINKMATE Server/Workstation Compatible Series Memory
Model nameTHINKMATE DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items128 GB (4 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 1.2V operating voltage of these ECC RDIMMs keep heat low when the server runs all day?

Yes, the 1.2V voltage is the standard low-power level for DDR4 registered modules, helping limit thermal output during continuous operation.

What motherboard feature must my Thinkmate system already provide for this registered ECC kit to function?

The motherboard must support DDR4 registered ECC RDIMMs with 288-pin slots and be qualified for 3200 MT/s operation.

Will the CL22 timing of this 3200 MT/s kit match the latency of older DDR4 modules I keep in other slots?

CL22 is the rated latency for this 3200 MT/s kit; mixing modules with different speeds or latencies will force the system to run at the slowest common settings.

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